Jesse Spencer Matthew Casey Actor Taylor Kinney Kelly Severide Actor Charlie Barnett Peter Mills Actor Monica Raymund Gabriela Dawson Actor Lauren German Leslie Shay Actor Eamonn Walker Chief Wallace Boden Actor David Eigenberg Christopher Herrmann Actor Joe Minoso Joe Cruz Actor Yuri Sardarov Brian "Otis" Zvonecek Actor Christian Stolte Randy "Mouch" McHolland Actor Sophia Bush Erin Lindsay Guest Star Kenny Johnson Tommy Welch Guest Star Melissa Ponzio Donna Robbins Guest Star Vedette Lim Devon Guest Star Edwin Hodge Rick Newhouse Guest Star Randy Flagler Mark Harper Guest Star Amy Morton Trudy Platt Guest Star Derek Haas Executive Producer, Writer Michael Brandt Executive Producer, Director, Writer Jeffrey Nachmanoff Executive Producer Dick Wolf Executive Producer Peter Jankowski Executive Producer Danielle Gelber Executive Producer